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[wasm] Ship far jump tables

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This flips the --wasm-far-jump-table flag. It will allow for more than
128MB of code space per wasm module on arm64, and will increase the
limit on the number of modules per process on x64 (was ~1000 before,
because we reserved 1GB for the code space per module).

R=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: I870ec616f4812e38ef1e3fccf0629854a247bb4f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815247
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Backes [né Hammacher] <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63967}
This commit is contained in:
Clemens Hammacher 2019-09-23 12:06:22 +02:00 committed by Commit Bot
parent 6d5e9b798e
commit 35ca0abdc5
1 changed files with 1 additions and 2 deletions
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3
src/flags/flag-definitions.h
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@ -763,10 +763,9 @@ DEFINE_BOOL(wasm_code_gc, true, "enable garbage collection of wasm code")
DEFINE_BOOL(trace_wasm_code_gc, false, "trace garbage collection of wasm code")
DEFINE_BOOL(stress_wasm_code_gc, false,
"stress test garbage collection of wasm code")
DEFINE_BOOL(wasm_far_jump_table, false,
DEFINE_BOOL(wasm_far_jump_table, true,
"use multiple separate code spaces that might require far jumps "
"between them")
DEFINE_IMPLICATION(future, wasm_far_jump_table)
DEFINE_INT(wasm_max_initial_code_space_reservation, 0,
"maximum size of the initial wasm code space reservation (in MB)")